On 3 December 2014 at 03:22, Kirk Wallace kwall...@wallacecompany.com wrote:
I looked at the manual:
http://www.hitachi-america.us/supportingdocs/forbus/inverters/Support/WJ200_Instruction_NT325X.pdf
and saw that there is no shortage of available registers. Starting with
B-24, one can see
Does anyone know how to interpret MTBF numbers?
http://docs-europe.electrocomponents.com/webdocs/0d17/0900766b80d17a55.pdf
Specifically. 1500 hours doesn't seem very long,
--
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto
It looks like over 1500 'millions of hours' of 'Mean Time Between
Failures'
Thanks
Rick
-- Original Message --
From: andy pugh bodge...@gmail.com
To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
Sent: 12/3/2014 7:20:32 AM
Subject: [Emc-users] MTBF
Does
On Wed, Dec 3, 2014 at 7:20 AM, andy pugh bodge...@gmail.com wrote:
Does anyone know how to interpret MTBF numbers?
http://docs-europe.electrocomponents.com/webdocs/0d17/0900766b80d17a55.pdf
Specifically. 1500 hours doesn't seem very long,
--
atp
If you can't fix it, you don't own it.
The default behavior for arc distance is incremental so for a given arc
you only have to change the start and end points to be correct.
For example with the center of the arc at X0 Y0 and a 0.510 diameter and
starting at 180 and going CW to 90 the G code is:
G0 X-0.2550 Y0.
G2 X0.
On 3 December 2014 at 12:27, Rick Lair r...@superiorroll.com wrote:
It looks like over 1500 'millions of hours' of 'Mean Time Between
Failures'
But that would be 170,000 years, which seems unlikely too.
Even 1500 x 1000 hours (170 years) seems unlikely.
--
atp
If you can't fix it, you
You're right Rick . ;-)
On Wed, Dec 3, 2014 at 1:27 PM, Rick Lair r...@superiorroll.com wrote:
It looks like over 1500 'millions of hours' of 'Mean Time Between
Failures'
Thanks
Rick
-- Original Message --
From: andy pugh bodge...@gmail.com
To: Enhanced Machine Controller
On 3 December 2014 at 12:42, alex chiosso achio...@gmail.com wrote:
You're right Rick . ;-)
I still don't believe 1,500 x million hours.
I suppose it could be a Euro-style decimal separator, and therefore
1.5 million hours, but that is still 171 years MTBF.
(which would be ideal, but seems
http://en.wikipedia.org/wiki/Mean_time_between_failures
On 12/3/2014 6:45 AM, andy pugh wrote:
On 3 December 2014 at 12:42, alex chiosso achio...@gmail.com wrote:
You're right Rick . ;-)
I still don't believe 1,500 x million hours.
I suppose it could be a Euro-style decimal separator, and
Searching for 'probability Mio' yields some interesting papers.
On Wed, Dec 3, 2014 at 6:45 AM, andy pugh bodge...@gmail.com wrote:
On 3 December 2014 at 12:42, alex chiosso achio...@gmail.com wrote:
You're right Rick . ;-)
I still don't believe 1,500 x million hours.
I suppose it could
On 3 December 2014 at 12:55, John Thornton bjt...@gmail.com wrote:
http://en.wikipedia.org/wiki/Mean_time_between_failures
I sort-of understand MTBF, what I don't understand are the units they
are quoting it in.
--
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto
On 3 December 2014 at 12:55, Stuart Stevenson stus...@gmail.com wrote:
Searching for 'probability Mio' yields some interesting papers.
It does, though very few related the subject at hand. (If using the quotes)
--
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto
http://www.proz.com/kudoz/german_to_english/business_commerce_general/1072093-mio.html
tells us it is Million hours.
Interestingly, though, the term does not appear in BS EN 61709:2011 Electric
components - Reliability - Reference conditions for failure rates and stress
models for conversion.
I guess that's why a complete circle does not require the X and Y values
(because it already knows where the controlled point is) and just needs the G2
Ivalue Jvalue command.
Marcus
On 3 Dec 2014, at 12:34, John Thornton wrote:
The default behavior for arc distance is incremental so for a
Andy
MTBF is obtained by testing a number of units over a period of time at
accelerated environmental conditions. First the infant mortality of a
product is determined and then the MTBF is deduced. Some suppliers have
an MTBF based on the number of products produced compared to the number
of
Normally it is quoted in hours of service.
On 2014-12-03 15:11, andy pugh wrote:
On 3 December 2014 at 12:55, John Thornton bjt...@gmail.com wrote:
http://en.wikipedia.org/wiki/Mean_time_between_failures
I sort-of understand MTBF, what I don't understand are the units they
are quoting it in.
On 3 December 2014 at 13:38, Marcus Bowman
marcus.bow...@visible.eclipse.co.uk wrote:
I don't believe 1500 Million hours. It is, in any case, a calculated value
(not that there's anything wrong with that). If the unit contains large
capacitors, 1500 hours is a much more realistic figure.
So they tested a batch of parts and projected out to the point where 63
percent will have failed using some assumed distribution of failure times.
Not hard to get to 171 years using that methodology. It ignores the common
case where there is a mode of failure that causes the failures to be
On Wednesday 03 December 2014 07:34:59 John Thornton did opine
And Gene did reply:
The default behavior for arc distance is incremental so for a given arc
you only have to change the start and end points to be correct.
For example with the center of the arc at X0 Y0 and a 0.510 diameter
and
On 12/3/2014 9:27 AM, andy pugh wrote:
On 3 December 2014 at 13:38, Marcus Bowman
marcus.bow...@visible.eclipse.co.uk wrote:
I don't believe 1500 Million hours. It is, in any case, a calculated value
(not that there's anything wrong with that). If the unit contains large
capacitors, 1500
2014-12-02 19:17 GMT+02:00 dave dengv...@charter.net:
Hi all,
I'm trying to migrate from my ancient mb on the cinci to a D525MW.
The system device is an 8 mb CF plugged into one of mesa's CF to SATA
adapters. My linux install won't format it. i.e. install sees my usb
flash drive
I did the
On 12/03/2014 07:38 AM, Marcus Bowman wrote:
http://www.proz.com/kudoz/german_to_english/business_commerce_general/1072093-mio.html
tells us it is Million hours.
Interestingly, though, the term does not appear in BS EN 61709:2011 Electric
components - Reliability - Reference conditions for
On 12/03/2014 07:40 AM, Marius Liebenberg wrote:
Andy
MTBF is obtained by testing a number of units over a period of time at
accelerated environmental conditions.
MTBF CAN be evaluated this way, and it is a more truthful
way to do it, but it requires a LOT
of units and long testing on hi-rel
Gene,
Your confusing me LOL...
Here is a sample program to move in an arc in quadrant 1 from 0 degrees
to 90 degrees. You only have to move to the start position then pass the
radius of your arc. After the G90 it moves to a second location then
does the same arc.
; 90 degree cw arc in
The same thing as a subroutine.
; 90 degree cw arc in quadrant 1 0-90 degrees
o100 sub
G91
G2 X#1 Y-#1 I0.0 J-#1
G90
o100 endsub
G1 X0 Y0 F10
o100 call [0.250]
G0 X1 Y-1
o100 call [0.50]
M2
JT
On 12/3/2014 9:39 AM, Gene Heskett wrote:
On Wednesday 03 December 2014 07:34:59 John Thornton did
While I agree with that rant I can say that a lot of higher end stuff
does get environmental testing. My stuff lives in a hotter than
average environment and so I have to consider this.
Also my father has worked for a few different companies that for
defense and enterprise level hardware had to
On 3 December 2014 at 15:46, Dave Cole linuxcncro...@gmail.com wrote:
I believe the super reliable Acopians are the Gold Box units. But you
should contact them and ask them what is their most reliable power
supply design these days.
http://www.acopian.com/
In the UK the best source might
Hello to all again.
We're defining the hardware for the Mazak conversion and yesterday my
brother and I measured the resolver signals to identify what voltage and
frequency they use. I've been reading some information about resolvers and
it's not too difficult to understand the way they work,
On 12/03/2014 11:39 AM, Evan Foss wrote:
While I agree with that rant I can say that a lot of higher end stuff
does get environmental testing. My stuff lives in a hotter than
average environment and so I have to consider this.
Also my father has worked for a few different companies that for
On 12/3/2014 7:31 AM, Steve Stallings wrote:
Traco appears to be a company whose main offices
are located in German speaking areas.
Mio is used as an abbreviation for Million, especially
in German.
The document that you linked seems to use a mixture
of . and , as the symbol for the decimal
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